EMC Symmetrix Remote Data Facility (SRDF) Asynchronous - license - 1 TB cap

The SRDF family of software is the most powerful suite of remote storage replication solutions available for disaster recovery and business continuity. It leverages high-end Symmetrix storage architecture to offer unmatched deployment flexibility and massive scalability - so you can meet mixed service level requirements with minimal operational impact. Only the SRDF family provides cross volume and storage system consistency, tight integration with industry-leading applications, and automated management for simplified usage.

SRDF Asynchronous is a high-performance extended distance asynchronous replication using a Delta Set architecture for reduced bandwidth requirements and no host performance impact.